The photograph, published this week in Science, was taken by a group led by Isabelle Kruta of the French National Museum of Natural History, using a technique called synchrotron X-ray microtomography.

本周，这张图片被刊登在《科学》杂志上，由法国国家自然历史博物馆的伊萨贝拉。克鲁特所率领的一支团队使用一种叫做“同步辐射微束X射线的技术”拍摄。

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But the analysis by Kruta and her colleagues indicates their ammonites would have dined on small organisms floating in the water, such as zooplankton, tiny crustaceans, and even other petite ammonites.

BBC: Ammonite diet revealed in X-rays